Condition of Structure(s):
The condition of the structures before the rehabilitation was very poor with significant loss of substrate and mortar between the bricks due to a high level of H2S and there was a presence of ground water infiltration.

Size/Cost:
25 manholes

Description of Application:
The City of Roswell has been using Raven products successfully in the wastewater environment for over 15 years. Over 800 manholes, junction boxes, wet wells and lift stations have been rehabilitated and protected with Raven 405, a ultra-high-build epoxy coating, over the years. The structures were resurfaced with calcium aluminate cement, primed with a water born epoxy, and then top coated with Raven 405. This application process has proven over time to be the most effective means available to protect infrastructure cost effectively.